THANK YOU!! Finally, someone who can read and comprehend English! Even if Hokuto did sleep with other people, it wasn't like he was in a relationship with Yukito when he did.
Yes. You can't expect people not to move on from an unrequited love ,however in this case the seme was in love with uke from childhood...they got separated from the age of puberty...and now(last year of highschool) we have a fully experienced seme in sex who still is in love with uke and even plots to drop in his house in order to close the gap...it's not really believable. It seems to me that the author didn't want to portray a virgin seme cuz that would reduce his hotness...kinda like commercial works such as james bond in which a playboy,experienced character is hotter and more attention-grabbing than a virgin hot guy.
And apart from that since I'm unable to separate love from sex and I think you can never 100%separate them (I càn provide scientific evidence ), the seme who had sex with others(not sei and shiga) after uke's leave just makes his feelings insincere to me ....but I think I can understand cuz he never even touched uke at that age so it was not like he was that attached to uke.
have sex with his classmate and teacher if you read the end it say's they lied and tricked yukito, that's why Hokuto was pissed and Sei was apologising. Hokuto prentended that his actions were meant casually out of fear of rejection when in fact he was very serious. He didn't know Yukito distanced himself because he was in love with him. So no hating the Seme he was loyal all the 5 yrs of separation.